Networks of Symptoms and Exposures

منو

" Networks of Symptoms and Exposures "
Seary, Andrew J; Richards, William D; McKeown-Eyssen, Gail E.; Baines, Cornelia

Document Type	:	AL
Record Number	:	937208
Doc. No	:	LA830022m1
Language of Document	:	English
Main Entry	:	Seary, Andrew J; Richards, William D; McKeown-Eyssen, Gail E.; Baines, Cornelia
Title & Author	:	Networks of Symptoms and Exposures [Article]\ Seary, Andrew J; Richards, William D; McKeown-Eyssen, Gail E.; Baines, Cornelia
Title of Periodical	:	Structure and Dynamics
Volume/ Issue Number	:	1/2
Date	:	2005
Abstract	:	We present some novel methods for analyzing and visualizing data from medical studies using methods originally developed for the study of social networks. The methods are based on spectral (eigendecomposition) properties of networks, in particular the so-called Normal spectrum. Among the many desirable properties of this spectrum is the natural handling of bipartite (2-mode) networks through negative eigenvalues, the clustering properties related to positive eigenvalues, and the relationship to the chi-squared measure of dependence in contingency tables.